Introduces the solar system and its nine planets. Includes directions for making two models, one showing relative sizes of the planets and the other their relative distances from the sun.
An introduction to the solar system, discussing the sun and planets, the origins of the solar system, and shooting stars, and looking at how scientists are exploring outer space.
People have been studying the solar system's inner planets for years. Mercury, Venus, and Mars are Earth's closest neighbors, and scientists are still learning new things about them all the time.